Sleeve valve and method of making same



July 14, 1931. A. M. NIVEN Y 1,814,764

SLEEVE VALVE AND METHOD OF MAKING SAME Filed July 15, 1927 3Sheets-Sheet l A TTORNE Y.

July 14, 1931. A. M. NNEN 1,814,764

SLEEV VALVE AND METHOD OF MAKING SAME y Filed July l5., 1927 3Sheets-Sheet 2 July 14, 1931.

A. M. NIVEN SLEEVE VALVE AND METHOD OF MAKING SAME Filed July l5, 1927 3Sheets-Sheet 5 Arm/www.

Patented July 14, 1931 Y STATES 'VPATENTf OFFICE ARCI-IIE MACPI-IAILNIVEN, OF DETROIT, MICHIGAN, ASSIGNOR TO CONTINENTAL MOTORS CORPORATION,OF DETROIT, MICHIGAN, A CORPORATION OF VIRGINIA SLEEVE VALVE AND METHODOF MAKING SAME Application filed July 15, 1927. Serial No. 205,973.l

This invention relates to internal combustion engines and refers moreparticularly to an improved sleeve valve" and method of making same. Myinvention relates pri t" marily to the single sleeve valve engine andparticularly, though not necessarily so limited to the type where thesleeve is moved in a combined reciprocating and oscillating vpath withrespect to the sleeve and cylinder v axis whereby the sleeve andcylinder ports are caused to function in the well known manner.

Heretofore such sleeve valves have been y. generally made of cast iron,especially where the valves are driven by a link mechanism operated by avalve layshaft. Steel sleeves or sleeves constructed of materials'having the generalcharacteristics of steel as distinguished from castiron have vbeen lused in many tvpes of sleeve valve engines and myinvention embodies an improved construction and method of manufacturefor this type of sleeve valve. It is known that steel sleeves may bemade much lighter than cast iron sleeves thus reducing the inertiaforces incident to operatingthe engine. Difnculty has been experienced,however, in suitably and ,conveniently securing the driving lug or othersleeve driving means to the steel 7130 sleeve valve. Such a problem doesnot arise in the use of cast iron sleeves since such lugs or drivingmeans may be cast integrally with the sleeves. A furtherdiflicultyexperienced in connection with the use of steel sleeves 'T55 resides inconveniently reinforcing the lower end of the sleeve. yThe steel sleevedue to its thinness is generally reinforced to prevent undue twistingand distortion.` Here, again, where such reinforcing is desirable in acast iron sleeve,a reinforcing annular band Referring to theaccompanying drawings in whichr like reference characters indicatecorresponding parts throughout the several views, n

`Fig. 1' isa plan view in cross section of a portion of an engineshowing the sleeve valves and driving means therefor,

Fig. 2 is a sectional elevation through a typical sleeve valve,

Fig. 3 is a perspective view of the lower end of a sleeve valve showingthe sleeve prepared to receive the driving lug,

Fig. 4 is a perspective view showing the driving lug,

Fig. 5 is a sectional elevation through the assembled sleeve and drivinglug,

Fig. G is a plan viewof a form of lug and sleeve assembly, Y

' Fig. 7 is a detail sectional view through 7-7 of Fig. 6,

Fig. 8 is a perspective View of the lug shown in Figs. 6 and 7, c

Fig. 9 is a view corresponding lto Fig. 3 showing a still furthermodification,

Fig. 10`is a perspective view of the sleeve Ybe 'driven in variousmanners, that shown comprising the valve layshaft C having 'cranks 1Qwhich may operate the links D through a ball and socket connection 11 topermit the slight side swing of the links. The links D may beconstrained to move parallel to themselves by connection through a pivotpin 12 between the ears 13 of sleeve driving lug E and if desired thelink face next to the sleeve may be recessed in arcs 14 conforming withthe sleeve contour whereby the pivot pin 12 may be positioned closerthan otherwise to the sleeve valve. ThusA the sleeve valve moved ini acombined reciprocating and oscillating path, the usual piston (notshown) operating within each sleeve valve for each cylinder of theengine.

Referring particularly to Figs. 3, 4l, and 5 the sleeve A is constructedof relatively thin steeltubing or other suitable material affordingthenecessary strength. and resistance to rupture and distortion. Suchtubing may be drawn, rolled or prepared in any convenient manner.- Itlienj preferably spin or roll' over the lower edge to form the annularflange 15 which will stien the lower portion of the sleeve and'preventits'twisting and distortion. The rib 16 is pressed outwardly and may belocated so as to receive therewithin theside edgesl and top edge'lS` ofthe driving lug. E', the lower edge 19- thereof resting in the cornerformed by the flange 15. The lug E is then secured in positionpreferablyby welding at 20 between thefrib l'and lug. edges 17 and 1S,-and also at 21 between the flange 1.5 and adjacent lug face 22.. Theribl.v alfordsan efficient welding connection with the faces of the lug'i it being well knownthattwo `materialswillbest weld when they are.parallel, or substantially' so, as distinguished from a right angularrelative posi-tion For the same reason the Vflange 15 offers a goodwelding connection and at the same time' the rib 16 and flange 15vstill'ens and strengthens. the sleeve. The lug E may be cut away at 28toperm-it close positioning of the pivot pin 12 to the sleevev valvesince otherwise the link' pivot pin boss 24 would interfere with thedriving lug rear' Wall requiring the pivot pin to be moved further awayfrom the sleeve. Thus the lug E is formed with the ears 13y connected bybridges 25, aligned openings 26 in the ears receiving the pivot pin 12.The lugs Ef may be con veniently drop forged or stamped fromE sheetmetal, and where the former method is employed the lugs maybe forged inthe for-m of an annular band Vwith annular spaced flanges,.an :l` thensegmentally cut to form the lugs as shown in Fig. 4.

`In Figs. 6, 7, and 8 the sleeve A2 is formed with. the flange 15, thesleevel lug E2 being providedwith. aflange 27 preferably sub"-stantiarl'lj,7 equal tothe thickness/of the sleeve7 thus providinganellicient welding connec tion with. the sleeve at 28. The weld may alsobe carried around. the edges of the lug E2 as at 29 and 30.y The flange27 being of substantially the same-thickness of the sleeve valve andparallel thereto offers anefficient welding connection.

ln: F igs.A 9 to l2't-he sleeve A3 is formed withfapunchedout opening'31 having border outstanding flanges 32. The lug E3 isproe' videdwith aflange preferably substantially equal to the sleeve-thickness,thisflange being spaced.forwardly'from the rear of the lug.v E3 toprovide .faces 34 for Contact with the sleeve ange. lIlhus anaellicientWelding connection is provided around the sleeve flanges 32 and lugflanges 33 as at 35. If desired the lower flange 32 might be omitted andthe lower lug flange 33 omitted, the lower ear 13 being positioned forwelding adjacent the annular flange 15 as in Fig. 5.

Since the general practice in engines of the character described is toproportion the parts so that a portion of the piston leaves the'lowerend of the sleeve valve during a part of its travel, it is advisable toavoid sleeve deflected portions which might allow expansion of thepiston rings into such deflected portions and the several illustratedembodiments of my invention will meet such requirements.

Various modifications will suggest thein selveswithout departing fromthe spirit and scope of my invention: andfl do not limit myself to theprecise constructions and methods illustrated except as recited in theclaims..

TNh at' l claim as` my inventionv is t.

11.. A tubular sleeve valve provided with a driving lu g securedthereto, said lug provided with parallel ears integrally connected byspaced bridge portions.'

2. A tubular sleeve valve formed with an opening boundedV by integralflange portions extending outwardly from the sleeve', anda sleevedriving lug within the sleevev opening and formed withflanged.portionslweldedto the saidsleeve flange portions..

3'.. A tubularI sleeve valve formed with. an opening bounded-byintegral. flange portions extending outwardly from the sleeve, andasleeve drivin-g lug within-the sleeve opening and formed with flanged`portions welded to the said sleeve flange portions, the said lug anged:portions being of substantially the sameethickness as the sleevev flangeportions.

4. A bui lt-up, tubular sleeve valvey struc.'- ture comprising abodyportion, a sleeve valve actuating element having a portion thereofoverlapped withy respect toa portion of said body portion, andmeans forattaching said actuating element tothe sleeve valve. body portion, saidactuating element provided with an. ear having a flatbearing surfacelying in. av planel substantially at right angles with 'the sleeve valveaxis.

5. A tubular-sleeve' valve formed: with an opening and' a flangebounding a portion of said' opening, and a sleeve valve actuatingelement having a portion overlapping the ria-nge and welded thereto.

6.1K built-up tubular sleeveV valve structure comprising a body portion,a sleevevalve actuating element having` a portion. thereof overlappedwith respect to a portion of said body portion, and means for attachingsaid actuating element to the sleeve valve' body portion, said'actuating? element provided with spacedflat bearingsurfaces respectivelylying inplanes substantially at right, angles with the sleeve valveaxis.

7. A built-up tubular sleeve valve comprising a body portion, and asleeve valve actuating element having a portion overlapped with respectto a portion of said body portion and welded thereto, said actuatingelement provided with an ear having a flat bearing surface lying in aplane substantially at right angles with the sleeve valve axis.

8. A built-up tubular sleeve valve comprising a body portion providedwith an outwardly projecting integral rib, a sleeve valve actuatingelement having a portion adjacent said rib and welded thereto,'saidactuating element provided with an ear having a flat bearing surfacelying in a plane substantially at right angles with the sleeve valveaxis.

9. A tubular sleeve valve provided with an integral ribbed portion, adriving lug welded to saidV ribbed portion, said lug provided withparallel ears integrally connected by spaced bridge portions.

10. A tubular sleeve valve provided with an opening through the wallthereof, a driving lug within the opening and secured to the sleeve,said lug provided with parallel ears integrally connected by spacedbridge portions.

11. A tubular sleeve valve provided with an outwardly deflected portion,a driving lug having parallel ears integrally connected by vspacedbridge portions, one of said ears having a flange extending axially ofthe sleeve and secure to the said outwardly deflected portion of thesleeve.

12. A tubular sleeve valve for internal combustion engines provided withan integral ribbed portion, and a sleeve lug having a portionoverlapping said ribbed portion of the sleeve and welded thereto, saidsleeve lugV provided with means to the outside of said welded joint forsupporting apivoted connection with an actuating means.

13. A built up tubular sleeve valve structure comprising a body portion,and a sleeve valve actuating element secured thereto and having aportion thereof overlapped with respect to an exterior portion of saidbody portion.

14. A built up tubularsleeve valve structure comprising ra body portion,a sleeve valve actuating element having a portion thereof overlappedwith respect to an exterior portion of said body portion, and means forsecuring the overlapping portion of said sleeve valve actuating elementto said body portion. e

15. A built up tubular sleeve valve structure comprising a lbody portionprovided with an outwardly deflected portion, a sleeve valve actuatingelement having a portion thereof overlapped with respect to the exteriorsurface of the deflected portion of said body portion, and means forsecuring the overlapping portion of said sleeve valve actuating elementto said body portion.

16. A built'up tubular sleeve valve structure comprising a body portion,and a sleeve valve actuating yelement having a portion flected portion,and a sleeve valve actuating element having a portion thereof overlappedwith respect to an exterior surface of the shallow deflected portion ofsaid body portion andA welded thereto.

18. A` tubular sleeve valve for internal combustion engines formed withan annular reinforcing flange, and a sleeve lug having a portionoverlapping said flange and welded thereto. i n

19. A tubular sleeve valve for internal combustion engines formed with arelatively shallow reinforcing flange, and a sleeve lug having a portionoverlapping'said flange and welded thereto.V i

20. A tubular sleeve valve for internal combustion engines formed withan annular reinforcing flange portion and a second projecting portion,and a sleeve lug having a portion thereof overlapping said sleeveportions and welded thereto.

21. A tubular sleeve valve for internal combustion engines formed withparallel reinn forcing projecting portions,- and a sleeve lug having aportion thereof overlapping said sleeve portions and welded thereto.

22. A tubular sleeve valve for internal Vcombustion engines formed withparallel annular reinforcing projecting portions lying in spacedparallel planes extending transversely of the sleeve axis, and a sleevelug having a portion thereof overlapping said sleeve portions and weldedthereto.

23. A tubular sleeve valve for internal combustion engines formed withprojecting portions, and a sleeve lug positioned to project radiallyoutwardly with respect toV the wall of the sleeve and having an inneredge portion overlapping saidsleeve portions and welded thereto.

24:. A tubular sleeve valve for internal combustion engines formed-withan annular reinforcing flange portion and other'integral projectingportions, .and a sleeve lug positioned to project radially outwardlywith respect lto the wall of the sleeve and having an inner edge portionoverlapping said sleeve `portions and welded thereto.

25. A tubular sleeve valve for internal combustion engines formed with aplurality of reinforcing flange portions projecting outwardly from thewall ofthe sleeve, and a sleeve lug positioned to project radiallyoutwardly with respect to the wall of the sleeve and having an inneredge portion overlapping said: sleeve` flange portions; and Weldedthereto. i

V26;,A tubulansleevel valve for internal combustion engines formedVAWith an out- Y 'Wardlyl extendingA annular projecting; por,- tion, and asleeve lug comprislnga pairof spaced ears and having`l at least one.of'said ears overlappin-gjsaid projecting portion and.

Welded thereto.

27., A tubular" sleeve Valve for internal combustion engines f formedwith spacedi out- Wardly extending annular projecting portions, and akslee-,ve lugftelescopically assembled Within said projecting portionsand comprising-a pair of; spaced ears-projecting radially outwardly fromthe vsleeve Wall, said lug arranged:I to have an inner edge` portionoverlapping: saidg projecting portionsI and Welded thereto.

In, Witness whereof;k I- hereunto, subscribe my name this ILlthfday ofIJuly,v A. Di`1927.

MACPHEAI'L NIVEN.

